"Here at Underground MX, we're excited to support and to be part of the 13th Annual Texas Winter Series, which is already a well-established and well run series" said Randy Poulter, President of UGMX. "We hope to provide another great venue for all of the riders and their families that follow the TWS. UGMX looks forward to welcoming everyone!"

The AMA Texas Winter Series has been the largest, richest series in the Lone Star state since 2006 and boast over $400,000 in contingency. The series kicks off on New Years Weekend on Freestone's pro national track.

The AMA Texas Winter Series races Mini's on Saturday and Big Bikes on Sunday. The series also offers each round as an AMA Pro Am to allow riders to earn their points for theirs pro license early in the year.

With discounts for online and multiple entries, the series awards overall contingency through 10th overall and counts points for the best 4 out of 5 rounds.

Freestone County Raceway was established in 2000 and is located on the 1150 acre Miller Ranch. Freestone is home to Round 2 of the Lucas Oil AMA Pro Motocross Championship. Freestone also promotes amateur series such as the AMA Texas Winter Series, the James Stewart AMA Spring Championship, the AMA Women's Cup, the AMA Texas State MX Championship, the Texas Night Series and boasted the brightest lighting of any motocross track in the country. For more information, visit www.freestonemx.com.